Since Yosemite HD4400 mobile (8086:0a16) & HD4600 mobile support (8086:0416) has been removed from the AppleIntelHD5000* drivers.
However the HD4600 desktop (8086:0412) still remains.
Getting initial QE/CI to work requires some patches with Clover, for which credits go to
Piker Alpha.
Clover configuration is as follows:
Code:
<dict>
<key>Comment</key>
<string>QECI HD4600 (GT2 Mobile to Desktop)</string>
<key>Find</key>
<data>PYaAEgR0EOtd</data>
<key>Name</key>
<string>AppleIntelHD5000Graphics</string>
<key>Replace</key>
<data>PYaAFgR0EOtd</data>
</dict>
<dict>
<key>Comment</key>
<string>QECI HD4600 Azul (GT2 Mobile to Desktop)</string>
<key>Find</key>
<data>PYaAEgQ=</data>
<key>Name</key>
<string>AppleIntelFramebufferAzul</string>
<key>Replace</key>
<data>PYaAFgQ=</data>
</dict>
Additionally use Clover to insert a fake Intel GFX id of 0x4128086
Code:
<key>FakeID</key>
<dict>
<key>IntelGFX</key>
<string>0x04128086</string>
....
The same can be done through DSDT also:
Code:
Method (_DSM, 4, NotSerialized)
{
If (LEqual (Arg2, Zero)) { Return (Buffer() { 0x03 } ) }
Return (Package()
{
"AAPL,ig-platform-id", Buffer() { 0x08, 0x00, 0x2e, 0x0a }, // Update this to your platform id
"model", Buffer() { "Intel HD 4600" },
"device-id", Buffer() { 0x12, 0x04, 0x00, 0x00 },
"hda-gfx", Buffer() { "onboard-1" },
})
}
This will boot up Yosemite with QE/CI.
However additional patching is needed to fully enable OpenCL / OpenGL without any problems.
If not applied you will experience problems in Preview, Photo Booth, iMessage Video Settings, Profile Picture Manipulation, Airmail 2, Pathfinder...
For Intel HD4400 (8086:0a16) execute the following command (Credits vbo):
Code:
# Patch libCLVMIGILPlugin for HD4400 OpenCL / OpenGL
sudo perl -i.bak -pe 's|([\xFF\xFC\x3D])\x86\x80\x12\x04|$1[COLOR=#000000]\x86\x80\x16\x0A[/COLOR]|sg' /System/Library/Frameworks/OpenCL.framework/Libraries/libCLVMIGILPlugin.dylib
sudo codesign -f -s - /System/Library/Frameworks/OpenCL.framework/Libraries/libCLVMIGILPlugin.dylib
For Intel HD4600 (8086:0416) execute the following command:
Code:
# Patch libCLVMIGILPlugin for HD4600 OpenCL / OpenGL
sudo perl -i.bak -pe 's|([\xFF\xFC\x3D])\x86\x80\x12\x04|$1\x86\x80\x16\x04|sg' /System/Library/Frameworks/OpenCL.framework/Libraries/libCLVMIGILPlugin.dylib
sudo codesign -f -s - /System/Library/Frameworks/OpenCL.framework/Libraries/libCLVMIGILPlugin.dylib
The perl command will automatically create a backup under libCLVMIGILPlugin.dylib.bak
Note when patching make sure that you are booting with kext-dev-mode=1 to ensure unsigned kexts will load properly.
